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发明授权
CN105785278B 电池寿命评估方法及装置 有权 转让

电池寿命评估方法及装置
摘要：
本发明涉及一种电池寿命评估方法及装置，述方法包括：获取待测电池在放电状态下的时间常数τ1；根据所述待测电池在出厂时的时间常数τ0和所述待测电池处于老化状态时的时间常数τaged以及获取的所述待测电池在放电状态下的时间常数τ1，计算所述待测电池的SOH值；检测所述SOH值是否大于预设值；若所述SOH值小于所述预设值，则评估所述待测电池老化。本发明可极大地提高评估待测电池的准确性。
摘要（英）：

The invention relates to a battery service life evaluation method and device. The method includes the following steps that: the time constant tau 1 of a battery to be measured in a discharge state is obtained; and the SOH value of the battery to be measured is calculated according to the time constant tau 0 when the battery to be measured is delivered out from a factory, the time constant tau aged of the battery to be measured in an aged state and the time constant tau 1 of the battery to be measured in the discharge state; whether the SOH value is larger than a preset value is detected; and if the SOH value is smaller than the preset value, it is evaluated that the battery to be measured is aged. With the battery service life evaluation method and device of the invention adopted, the accuracy of evaluation on the battery to be measured can be greatly improved.

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